NSN 5306-00-172-6840
Part Details | SHOULDER BOLT
5306-00-172-6840 An externally threaded fastener whose threaded portion is of one nominal diameter, No. 10 (0.190 IN.) (5 mm) or larger. It has a round unthreaded neck or shank all or part of which is of greater diameter than the threaded portion. The head is not designed to be held or driven with an inserted drivers. A locking feature may be incorporated in the design of the head or threads. For items with a thread diameter smaller than No. 10 (0.190 IN.) (5 mm) and those items with an inserted drive head, use SCREW, SHOULDER. For items which are No. 10 (0.190 IN.) (5 mm) or larger in size and are both shouldered and have an externally relieved body, use BOLT, EXTERNALLY RELIEVED BODY. Excludes THUMBSCREW.
Alternate Parts: 1808671, 180867-1, 5306-00-172-6840, 00-172-6840, 5306001726840, 001726840
Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
---|---|---|---|
53 | NOV 20, 1971 | 00-172-6840 | 04905 ( BOLT, SHOULDER ) |
REFERENCE DRAWINGS & PICTURES
UNDERCUT HEXAGON

Cross Reference | NSN 5306-00-172-6840
Part Number | Cage Code | Manufacturer |
---|---|---|
180867-1 | 71791 | CURTISS-WRIGHT CONTROLS, INC.DBA CURTISS WRIGHT |
Technical Data | NSN 5306-00-172-6840
Characteristic | Specifications |
---|---|
THREAD SERIES DESIGNATOR | UNF |
NOMINAL THREAD DIAMETER | 0.250 INCHES |
THREAD QUANTITY PER INCH | 28 |
THREAD CLASS | 3A |
THREAD DIRECTION | RIGHT-HAND |
THREAD LENGTH | 0.560 INCHES NOMINAL |
FASTENER LENGTH | 1.180 INCHES NOMINAL |
HEAD STYLE | 3 UNDERCUT HEXAGON |
HEAD DIAMETER | 0.880 INCHES NOMINAL |
HEAD HEIGHT | 0.100 INCHES NOMINAL |
WIDTH BETWEEN FLATS | 0.680 INCHES NOMINAL |
PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY SPECIAL PROJECT |